Effect of Gamma Rays Radiation on Growth of Corn

1975 Words Nov 25th, 2012 8 Pages
APPENDIX
Table 7.1. Mean heights (in cm) of Corn (Zea mays) plants irradiated with 50kr, 30kr, 10kr and no gamma rays. AGE (days) | Control | 10kr | 30kr | 50kr | 1 | 2.74 | 2.3 | 1.6 | 1.3 | 3 | 9.99 | 9.96 | 6.39 | 3.69 | 6 | 17.25 | 6.95 | 9.94 | 5.4 | 8 | 21.15 | 19.17 | 12.63 | 6.5 | 10 | 27 | 23.22 | 14.19 | 8.2 | 13 | 30.76 | 27.93 | 15.03 | 8.65 | 15 | 29.5 | 26.95 | 16.81 | 7.63 | 17 | 33.85 | 33.83 | 15.69 | 8.5 | 19 | 38.33 | 44.83 | 16.94 | 8.5 | 21 | 34.4 | 48.5 | 17.93 | 0 | 23 | 42.95 | 54.88 | 19.86 | 0 | 26 | 45.33 | 59.45 | 24.93 | 0 | 28 | 63.13 | 71.94 | 30 | 0 | 30 | 73.07 | 81 | 36 | 0 | 33 | 79.24 | 91.24 | 41.38 | 0 | 35 | 88.21 | 98.31 | 44.4 | 0 | 37 | 84 | 100.25 | 52.88 | 0 | 40 | 86.26 |
…show more content…
Studies have showed that the gamma rays interrupt protein synthesis, leaf gas exchange, hormone balance, enzyme activity and water exchange. But the morphological, physiological and and structural changes will all depend on the amount of applied gamma rays to the plant. The study aimed to determine the effect of different amounts of gamma rays radiation on the growth of corn (Zea mays) and to observe the damage it has brought in relation to the amount used for the treatment. The specific objectives were: 1. To observe the changes in the plant growth and the effect of each treatment to the plants in terms of % germination and survival rate. 2. To explain why the plants has acted such towards different doses of radiation. 3. And to describe which amount is helpful and optimum for a plant’s improved growth.

MATERIALS AND METHODS In testing for the effect of gamma rays radiation in growth of Zea plants, 40 Zea mays seeds were exposed to various doses of gamma rays radiation. 10 of the 40 seeds were exposed to 50 kr of gamma rays, 10 seeds were exposed to 30kr gamma rays, 10 seeds were exposed to 10kr gamma rays and 10 seeds served as control of the experiment with no exposure to gamma rays. The seeds were planted in 4 separate plots with labels, having 5cm gaps with each seeds. The seeds were taken care off like normal plants for three months. The heights of the plants were recorded in regular intervals and the germination rate and survival rate
Open Document